Bridle attachment for sheet metal rolls



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A. P. HINE. BRIDLE ATTACHMENT FOR SHEET METAL ROLLS.

No. 438,846. Patented 001;. 21,1890.

(No Model.)

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(No Model.) 3 Sheets-Sheet 3.

A. P. H'INE. BRIDLE ATTAGHMENT FOR SHEET METAL ROLLS. No. 438,846. Patented 001;. 21, 1890.

I l I l l I I I I I l I I I I I UNITED STATES PATENT OF ICE. I

ADELBERT P. HINE, OF TORRINGTON, CONNECTICUT, ASSIGNOR TO THE COE BRASS MANUFACTURING COMPANY, OF SAME PLACE.

BRIDLE ATTACHMENT FOR SHEET-METAL ROLLS.

SPECIFICATION forming part of Letters Patent No. 438,846, dated October 21, 1890. Application filed July 5, 1890. Serial No. 357.869. (No model.) I

To all whom it may concern.-

Be it known that I, ADELBERT P. HINE, a citizen of the United States, residing at Torrington, in the county of Litchfield and State of Connecticut, have invented certain new and useful Improvements in Bridle Attachments for Sheet-Metal Rolls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in bridles for sheetmetal rolls, and has for its objects to furnish aguiding and tensioning mechanism through which the strip shall pass prior to its presentation to the rolls, whereby the metal may be smoothed and flattened before the rolling, and whereby the strip may be tensioned alike both as to its whole width of surface and throughout its entire length.

Another object is to provide no cans for opening andv closing the rolls or bars whereby the strip-passage is altered; and, finally, it is an object of my invention to so arrange the bars and rollers or guide over or through which the strip is drawn prior to its entry between the rolls in such position relative to said rolls that the strip is first introduced upon the surface of the lower roll and then inward between said rolls.

In addition to the foregoing my invention greatly increases the capacity of the machine by reason of the rapidity with which the strip to be treated may be inserted and presented to the rolls.

Having in view the objects and ends heretofore set forth, my invention consists in the general construction and combination of elements hereinafter fully and in detail explained, and then recited in the claims which are hereunto annexed.

In order that those skilled in the art to which my invention appertains may fully understand how to make and use the device which forms the subj cot-matter of my improvement,

I will describe the same in detail, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a front elevation of a pair of rolls provided with my improvement; Fig. 2, a vertical section showing the manner of introducing the strip; Fig. 3, a like view showing the position of the parts during the operation of the machine, and Fig. 4 a detail sectional diagram showing the two positions of the parts of the bridle as compared.

Like numerals and letters denote the same parts in all the figures.

Represented by the numeral 1 is a pair of roll housings or standards having journaled therein a pair of suitable reducing-rolls 2. These parts are of any ordinary or desired construction and form no part of my present invention.

3 are base-plates, which I attach to the inner face of each of the standards when applying my invention as an attachmentto a machine already in use, but which may be dis pensed with when said invention is to be incorporated in a newly-built machine.

4 designates a pair of blocks which are journaled to the plates 3 by means of pins or short shafts 5, and 6 are bars which extend between the blocks, as seen at Fig. 1. These may be journaled in said blocks so as to rotate, or

or springs 9 serve to return the blocks a to the position shown at Fig. 2 when they have been carried out of said position against the action of said spring or springs.

10 denotes a pair of levers connected by a transverse rod 11, whereby said levers are fulcrumed to the base-plates. The upper ends of these levers engage the lower endsof blocks 4, (see Fig. 2,) and are capable of turning said blocks and the bars or rolls carried thereby to the position shown at Fig. 3 and there looking them. Said levers are. con nected with the blocks 7 by means of chains or cables 12, which are secured to the lever smooth passage through said rolls and obviat one end, and then, passing over pulleys 13 and 14, have their other ends secured to said blocks.

A treadle 15 is connected to the transverse rod 11 for the purpose of actuating the levers downwardly, and a spring 16, connected to the transverse bar 17 and the tread'le, serves to lift the latter.

A designates the strip.

In the operation of my machine the workman first draws the end of the strip of metal to be rolled between the two rolls or bars 6 and 8, as shown at Fig. 2 and in dotted lines on the diagram. He then feeds the strip inward by hand until its extremity is caught. between the rolls 2, and at that instant he depresses the treadle from the position shown at Fig. 2 to the positionshown at Fig.3.. This causes the said rolls or bars to grasp the strip and impart thereto :a certain tension, which? is less if the parts 6 and 8 be j-ournaled and I revol-uble orm'ore if they not journaled and the strip therefore drawn over their surfaces. The partial rotation of the blocks 4 is I effected by the levers acting directly upon. said blocks. The like movement of the blocks 7 is derived from the heel ends of the levers i through the cables or chains. When in the position shown at Fig. 3, the abutment of the j ends-of the leversagainst the blocks 4 is substantially at right angles to (the length of the 3 latter, and they thereby lock said blocks. this time the chains retain the blocks 7 in place, as at Figs. 3 and 4. When it is de-- sired to return the tension-rol lers to their i open position for the insertion of the nex-tg strip of metal to be treated, the "workman grasps the transverse rod 11, and bydrawingk it upward and outward carries the ends Of". the levers 10 out of their lock ing abutmen' t with the blocks dyaft-er which the sp-rings will return the parts to "their normal position. Bypassing over the tension bars or rollers? the strip is smoothed out and any small buckles or wrinkles removed. This is also true of any small bent portions of the edges of the strip, which, if permit-ted to go to the; rolls, would make imperfections in the fin-= ished metal or injure the surface of said rolls. Likewise the tension "which the bars :or rollers impart to the strip is thesame throughj out thewhole breadth of said strip :and is retained constant throughout the entire length thereof. i

Byrefere'nce to Fig. 4 and byco'mparing the 5 positions shown in full and in dotted lines'i't will be seen that whenopen (seedotted lines) 3 the line of insertionof the strip is in about the same horizontal plane with the meeting surfaces of the rolls; but the-partial rotation i of the blocks l-so alters the position of thef rollers carried thereby that the one nearest the reducing-rolls descends, and the course of j the strip after leavi-ng this roller is not directly between the reducing-rolls, whose contour it follows until operated upon. This insures its ates the possibility of buckling therein. The reducingrolls impart the motion to the strip, which draws it through and over the tension device, and after its reduction it is wound or coiled in any suitable manner.

In this invention I do not wish to be confined to the exact construction herein shown a and described, since the same may be widely varied without departing from the spirit and aim of my invention, as is now to be set forth in the claims.

I claim-- 1. In a machine as described, the combination, with the reducing-rolls, of a series of tension bars or rollers arranged in front of said reducing-rolls and means for varying the po sitions of said rollers or bars relative to the reducing-rolls.

2. In a machine asdescrihedmhe combination, with the redueing-rolls,of a series of tension bars or rollers arranged before the rolls and aitording a passage for the strip and means, as described, for altering the relative positions of said bars or rollers, whereby the strip is tensioned or released,.substantiallyas set forth.

3. "The-combination, witht/he'reducing-rolls, of two or more pairs of connected tension rollers or bars, each pair indepen'dentof theother, and means for imparting tosaid bars a rotary movement, whereby tension 'is impantedto he strip, substantially as set forth.

4. 'Theco'mbination, with thened ucing-rolls, of the two pairs of tension bars or rollers, pi 'oted blocks wherein each pal-rot said bars or rollers is held, and means for turning said blocks upon their pivots, as specified.

5. In a machine-of theeharacterdescr i-bed, the combination, with the reducing-rolls, of the pivoted blocks arranged in frontof "said rolls and each carrying 'a pair of tension bars or rollers, levers adapted to engage directly with one pair'of said blocks, and a co'nnection between said levers "and the other pair of blocks, substantially as described.

6. In a machine of theeharacterdescribed, the combination, with the reducing-rolls, of the two pairs of tension rollers or bars arranged in front of said reducing-rolls, levers adapted to operate one pair of bars by direct contact with the support of said bars, "and chainsoperated bysaid leversandadapted to actuate the other pair of bars.

7 Z. Thecombinat-ion, with the reducing-rolls, of a tension de'vioe through which the strip is adapted to pass prior 'to its introduction be tween the rolls, said tension device being be low the horizontal plane in which the rolls meet, whereby said strip firsten-gagesthesurtwo'or "more pairsof tension bmsorrollersarranged in front of said rolls and'adapted when 1n their open position to aiford a passage for the introduction of the strip in substantially the same horizontal plane with the meeting In testimony whereof I aflix my signature in surfaces of the reducing-rolls, and means for presence of two witnesses. altering the relative positions of said rollers or bars, whereby the strip is tensioned and is ADELBERT HINE 5 led onto the surface of the lower roll ata point Witnesses:

below the plane in which the rolls act upon CHAS. F. BROOKER,

the strip, substantially as described. E. T. COE. 

